Acetofenona (CAS 98-86-2) é uma cetona aromática comum como impureza em sínteses orgânicas e processos industriais. Na forma de líquido incolor com fórmula C8H8O e massa molar 120 | 15 g/mol | sua presença pode afetar pureza | odor e reatividade do produto final. Origem típica inclui subprodutos de acetilação incompleta e oxidação parcial de precursores. A monitorização analítica baseia-se em GC | GC-MS | HPLC e RMN para identificação e quantificação. Controlo é alcançado por destilação fracionada | extração líquido-líquido e cromatografia | além de especificações de lote que limitam níveis a traços ou percentagens baixas conforme aplicação e regulamentação.
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